Temperature problem

[rmgls at free.fr]

Hello everyone,

i encounter a temperature problem on my laptop
a SONY VAIO S5, running current.
This problem occurs since perhaps five months only.
when compiling some big programs, say src and even, only libc,
i see on a distant console (dconschat):
acpi_tz0 temperature 93.9C decreasing clock speed from 2133MHZ to 1867MHZ.
and the machine freeze.
    this happen without any modification of the clock hz in rc.loader.

       Please, can you help to solve this problem?

many thanks.

Raoul
rmgls at free.fr

P.S. please cc: rmgls at free.fr, i am not subscribed.